湖南省桑植县贺龙中学高中英语必修一教案Unit2Periods7-9Grammarandusage

课时：Periods79Grammarandusage整体设计三维目标1.TogiveabriefintroductiontoattributiveclausesintroducedbyPreposition+whichandpreposition+whomRelativeadverb:when,whereandwhy.2.EnablestudentstolearnattributiveclausesintroducedbyPreposition+whichandpreposition+whomaswellasrelativeadverb:when,whereandwhy.重点难点Learnhowwhen,whereorwhyisusedtointroduceanattributiveclause.教学方法1.Taskbasedinclassactivities.2.Explanationofsomerulesoftheattributiveclause.3.Practice.教具准备Someslidesandthemultimedia.教学过程→Step1RevisionandLeadin1.petitionAskstudentstousetheattributiveclausesintroducedbythat,which,who,andwhosetomakesentences.Dividetheclassintofourgroupsandaskstudentstostandupbythemselvestomakesentences.Thegroupwhomakethemostsentencesarethewinners.2.Leadin→Step2GrammarIHelpstudentslearninwhatcircumstancesthesetwoformsareusedtointroduceattributiveclauses.1.AskthestudentstoreadthetwoattributiveclausesinPointonpage28andthenpointouttheantecedentsinthem.Andthentellthefunctionofeachantecedentintheclause.2.ReadthetwosentencesinPoint2.(TheyinformalEnglishandtheprepositionisusuallyputattheendoftheattributiveclause.)AskstudentstochangethetwosentencesintoformalEnglish.3.Judgewhetherthefollowingsentencesaretrueorfalse.Showthefollowingsentencesonthescreen.1)DadisapersontowhoIcaneasilytalk.(F)2)DadisapersonwhomIcaneasilytalkto.(T)3)DadisapersonIcaneasilytalkto.(T)4)DadisapersontothatIcaneasilytalk.(F)5)DadisapersonthatIcaneasilytalkto.(T)6)DadisapersonwhoIcaneasilytalkto.(T)4.Presentthreeexamplesentencesindifferentways,payingattentiontotheprepositionsintheclauses.Inthisway,studentswilllearndifferentformsofclausesintroducedbyprepositions.1)ThepenwithwhichIwritemyhomeworkeverydayisbroken,soI’llhavetobuyanewone.(Herewithmustbeusedbecausewesay‘Iwritemyhomeworkwiththepeneveryday.’)2)Doyouknowthenameofthegirlaboutwhomourteacheristalking?(Hereaboutmustbeusedbecausewesay‘ourteacheristalkingtothegirl.’)3)ThemanforwhomIboughttheoldpictureisovereightyyearsold.(Herefrommustbeusedbecausewesay‘Iboughttheoldpicturefromtheoldman.)5.PracticeShowthefollowingsentencesontheblackboard1)Thetwothingsweretheirchildren’sexcellentperformanceinstudyandtheirhappyfamilylife.Theparentsfeltveryproudofthem.2)Ishallneverforgettheday.Wefirstmetonthatday.3)Hehaslostthekeytothedrawer.Thepapersforthemeetingwerekeptinthedrawer.4)Canyoulendmethemagazine?Youtalkedaboutitwithyourclassmatesyesterday.5)Antarcticaiscoveredwiththickiceallyearround.Weknowverylittleaboutit.Askthestudentstobinetwosentencesintoone.Payattentiontotheprepositions注:介词+关系代词whom(1)关系代词的确定先行词指物:介+which先行词指人:介+whom(2)介词的确定技巧:①根据定语从句的谓语动词来判断Thepictureforwhichhepaid2000dollarswasdrawnbyafamouspainter.Thepictureonwhichhespent2000dollarswasdrawnbyafamouspainter.②根据先行词特殊性Thespeedatwhichthemachineoperatesisshowontheputer.③特例Idon’tlikethewayinwhich/that/省略youspeaktoher.注:1.介词+which=when/where/why④有些介词不可提前Thisisaboythatwemustlookafter/tookcareof.类似的词组:lookfor/lookafter/takegoodcareof等⑤介词+whom/which+不定式(相当于一个定语从句)→Step3GrammarⅡ1.Tellstudentsthatwhenthenounortheantecedentreferstoacertainperiodoftimeandisusedastheadverbialoftimeintheattributiveclause,whenisusedtointroducetheclause.Herewhenisusedasarelativeadverb.Letstudentsreadthethreeexamplesentencesinpoint1onpage30.Askthemtotellwhatwhenreferstoineachofthesentences.Sostudentscanknowthatsentencesherecanbesaidinotherwaysasthefollowing:1)Doyourememberthedayonwhichweleftyouincharge?2)IoftenthinkofthemomentatwhichIsawtheUFO.3)IrememberthetimeatwhichEricwonthatspeechpetition.2.Tellstudentsthatwhenthenounortheantecedentreferstoaplaceandisusedastheadverbialofaplaceintheattributiveclause.Whereisusedtointroducetheclause.Herewhereisusedasarelativeadverb.Letstudentsreadthefourexamplesentencesinpoint2.Askthemtotellwhatwherereferstointhesentence.Alsowecanchangethesentencesintoanotherway.3.Tellstudentsthatwhenthenounortheantecedentisthewordreason,whyisusedtointroducetheclause.Herwhyisusedasarelativeadverb.Tellthestudentsherewhycanbereplacedbyforwhich.注:正确使用关系代词&关系副词根据定语从句中所作成分来确定关系代词或关系副词。误区:先行词是时间就用when,是地点就用where,是原因就用why。→Step4Practice1.AskthestudentstoreadtheplayinReadingagainandfoundouttheattributiveclausesinitwhichfeaturethegrammartheylearnedtoday.2.Askthestudentstodomultiplechoicesaboutattributiveclausesonthescreen.1)Hisparentswouldn’tlethimmarryanyone_____________familywaspoor.A.ofwhomB.whomC.ofwhoseD.whose2)Inthedarkstreet,therewasn’tasingleperson_____________shecouldturnforhelp.A.thatB.whoC.fromwhomD.towhom3)AfterlivinginParisforfiftyyearshereturnedtothesmalltown_____________hegrewupasachild.A.whichB.whereC.thatD.when4)CarolsaidtheworkwouldbedonebyOctober,_____________personallyIdoubtverymuch.A.it